6Ruskin H. Selected views on socio-economic aspects of outdoor recreation, outdoor tourism [ M]. Emmanuel Gill Publishing: education and sport Natanya, Israel.1987 : 111.
7Glyptis, S. Sport and tourism. In C. Cooper, Progress in tour- ism, recreation and hospitality management [ M ]. London: Bel- haven Press: 1991 : 165-183.
10Chernatony L. Categorizing brands: Evolutionary processes un- derpinned by two key dimensions [J]. Journal of Marketing Management, 1993(9) : 173-188.